Omni Notes FOSS

The project was inspired by the absence of such applications compatible with old phones and old versions of Android. It aims to provide an attractive look and follow the most recent design guidelines of the Google operating system.
Follow the developments and post your comments and advice on Google+ Beta Community at http://goo.gl/eF6qqF
Help to keep translations updated is always welcome, if you want give a hand checkout the translation project at Crowdin.
Features:
Material Design interface Basic add, modify, archive, trash and delete notes actions
Share, merge and search notes
Image, audio and generic file attachments
Manage your notes using tags and categories
To-do list
Sketch-note mode
Notes shortcut on home screen
Export/import notes to backup
Google Now integration: just tell "write a note" followed by the content
Multiple widgets, DashClock extension, Android 4.2 lockscreen compatibility
Multilanguage: 30+ languages supported: https://crowdin.com/project/omni-notes
Further developments will include:
Notes sychronization
Web interface to manage notes
You can find a complete changelog inside the application settings menu!
If you need some help on how to use the application you'll find everything you need in the Help Online section